perennial

Willowleaf Bluestar

Amsonia salicifolia

Not currently listed at our partner nurseries.

Expertly Curated

Real-Time Pricing

Loved by Designers

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

All parts are toxic if ingested; sap can cause skin irritation.

The Story

Plant Bio

Amsonia salicifolia, commonly known as Willowleaf Blue Star, is a deciduous perennial shrub with slender, willow-like foliage and clusters of small, pale blue star-shaped flowers that bloom in late spring to early summer. This species is valued for its graceful, airy appearance and its ability to tolerate a range of soil conditions, making it an excellent choice for naturalistic and low-maintenance gardens.

Uses & Benefits:

Provides airy, star-shaped blue flowers that attract pollinators, adding a delicate charm to gardens.

Drought-tolerant and deer resistant, ideal for low-maintenance landscapes.

Supports bees and butterflies, enhancing biodiversity.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

Tuck seeds into moist soil in early spring for best germination.
Water regularly until established, about 6 weeks.
Plant in well-draining soil with full to partial sun exposure.
Fertilize lightly in spring with a balanced fertilizer.
Mulch around the base to retain moisture and suppress weeds.
Divide clumps every 3-4 years in early spring or fall.

Pro Tip

Ensure good drainage and full sun for optimal growth.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Prune back after flowering to maintain shape
Mulch to conserve moisture and prevent weeds

Don't

Avoid overwatering in winter ❌
Don’t fertilize with high nitrogen fertilizers
Never disturb roots when dividing

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Soft blue border plantWildflower meadow accentShade garden backdrop

Companion Plants

Echinacea purpurea Rudbeckia hirta Coreopsis verticillata Lavandula angustifolia Sedum spp.

Multiply

Propagation Methods

Good to Know

Common Questions

Willowleaf Bluestar questions

What zones can Willowleaf Bluestar grow in?

Willowleaf Bluestar is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Willowleaf Bluestar deer resistant?

Yes — Willowleaf Bluestar is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Willowleaf Bluestar bloom?

Willowleaf Bluestar typically blooms in late spring to early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Willowleaf Bluestar need full sun?

Willowleaf Bluestar does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Willowleaf Bluestar drought tolerant?

Yes — once established (usually after the first full season), Willowleaf Bluestar handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.